WO2007021912A3 - Model predictive control having application to distillation - Google Patents

Model predictive control having application to distillation Download PDF

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Publication number
WO2007021912A3
WO2007021912A3 PCT/US2006/031344 US2006031344W WO2007021912A3 WO 2007021912 A3 WO2007021912 A3 WO 2007021912A3 US 2006031344 W US2006031344 W US 2006031344W WO 2007021912 A3 WO2007021912 A3 WO 2007021912A3
Authority
WO
WIPO (PCT)
Prior art keywords
utilized
variables
model predictive
distillation
controller
Prior art date
Application number
PCT/US2006/031344
Other languages
French (fr)
Other versions
WO2007021912A2 (en
Inventor
Solomon A Dadebo
Thomas Craig Hanson
Frank J Klein Iii
Original Assignee
Praxair Technology Inc
Solomon A Dadebo
Thomas Craig Hanson
Frank J Klein Iii
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Praxair Technology Inc, Solomon A Dadebo, Thomas Craig Hanson, Frank J Klein Iii filed Critical Praxair Technology Inc
Priority to CA2619169A priority Critical patent/CA2619169C/en
Priority to BRPI0614404A priority patent/BRPI0614404B1/en
Priority to CN2006800341048A priority patent/CN101267868B/en
Priority to EP06801232.7A priority patent/EP1917081B1/en
Publication of WO2007021912A2 publication Critical patent/WO2007021912A2/en
Publication of WO2007021912A3 publication Critical patent/WO2007021912A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B01D3/4211—Regulation; Control of columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/42—Regulation; Control
    • B01D3/4211—Regulation; Control of columns
    • B01D3/4272—Side- and feed stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/0295—Start-up or control of the process; Details of the apparatus used, e.g. sieve plates, packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04793—Rectification, e.g. columns; Reboiler-condenser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04769—Operation, control and regulation of the process; Instrumentation within the process
    • F25J3/04848—Control strategy, e.g. advanced process control or dynamic modeling
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
    • G05B13/042—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators in which a parameter or coefficient is automatically adjusted to optimise the performance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2280/00—Control of the process or apparatus
    • F25J2280/50—Advanced process control, e.g. adaptive or multivariable control

Abstract

A method of controlling a distillation column in which a temperature sensed in a top section of the column (2) is magnified and utilized within the model predictive controller (4) so that control is more aggressive as temperatures increase beyond a threshold temperature. Additionally, in the distillation column (2) , or in fact in any other system in which two or more manipulated variables control two or more common controlled variables, special modeling techniques are utilized to make controller tuning easier to accomplish. In such modeling techniques, each manipulated variable is assumed to be able to have an effect on a controlled variable by a single step response model and other step response models are utilized so that the other manipulated variable (s) that also would have an effect on the same controlled variable are taken into account by the controller (4) as feed forward variables .
PCT/US2006/031344 2005-08-15 2006-08-11 Model predictive control having application to distillation WO2007021912A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA2619169A CA2619169C (en) 2005-08-15 2006-08-11 Model predictive control having application to distillation
BRPI0614404A BRPI0614404B1 (en) 2005-08-15 2006-08-11 method for controlling a distillation column
CN2006800341048A CN101267868B (en) 2005-08-15 2006-08-11 Model predictive control having application to distillation
EP06801232.7A EP1917081B1 (en) 2005-08-15 2006-08-11 Model predictive control having application to distillation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/203,140 2005-08-15
US11/203,140 US7292899B2 (en) 2005-08-15 2005-08-15 Model predictive control having application to distillation

Publications (2)

Publication Number Publication Date
WO2007021912A2 WO2007021912A2 (en) 2007-02-22
WO2007021912A3 true WO2007021912A3 (en) 2008-02-07

Family

ID=37461522

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/031344 WO2007021912A2 (en) 2005-08-15 2006-08-11 Model predictive control having application to distillation

Country Status (6)

Country Link
US (1) US7292899B2 (en)
EP (2) EP1917081B1 (en)
CN (2) CN101267868B (en)
BR (1) BRPI0614404B1 (en)
CA (2) CA2619169C (en)
WO (1) WO2007021912A2 (en)

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US8032235B2 (en) * 2007-06-28 2011-10-04 Rockwell Automation Technologies, Inc. Model predictive control system and method for reduction of steady state error
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US9760067B2 (en) * 2009-09-10 2017-09-12 Honeywell International Inc. System and method for predicting future disturbances in model predictive control applications
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US8587320B2 (en) 2010-11-09 2013-11-19 Honeywell International Inc. System and method for testing a secondary servo control circuit in a redundant control configuration
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CN103048927B (en) * 2012-12-28 2015-03-25 浙江大学 Model prediction control method for rectification system
JP5969919B2 (en) * 2012-12-28 2016-08-17 アズビル株式会社 Optimization device and method, and control device and method
JP2016507113A (en) * 2013-02-05 2016-03-07 ヨコガワ・コーポレーション・オブ・アメリカ System, method, and apparatus for determining the characteristics of a product or process stream
CN103438664B (en) * 2013-07-24 2016-03-16 莱芜钢铁集团有限公司 A kind of control method of air separation unit equipment and device
RU2558596C2 (en) * 2013-11-15 2015-08-10 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВПО "НИУ МЭИ") Method for automatic control of efficiency of fractionation process
CN106461322A (en) * 2014-04-15 2017-02-22 林德股份公司 Process and apparatus for the low-temperature fractionation of air
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US10012438B2 (en) 2015-07-31 2018-07-03 Praxair Technology, Inc. Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system
US10018413B2 (en) 2015-07-31 2018-07-10 Praxair Technology, Inc. Method and apparatus for increasing argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system
US10012437B2 (en) 2015-07-31 2018-07-03 Praxair Technology, Inc. Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system
US10066871B2 (en) * 2015-07-31 2018-09-04 Praxair Technology, Inc. Method and apparatus for argon rejection and recovery
FR3041545B1 (en) * 2015-09-28 2019-06-07 Commissariat A L'energie Atomique Et Aux Energies Alternatives DEVICE FOR CONVERTING A STEAM LIQUID AND METHOD FOR REGULATING AN ASSOCIATED HEATING POWER
JP6904259B2 (en) * 2015-12-21 2021-07-14 日本電気株式会社 Refrigerant circulation device and refrigerant circulation method
WO2018024711A1 (en) * 2016-08-04 2018-02-08 Covestro Deutschland Ag Method for controlling a rectification column
US11262125B2 (en) 2018-01-02 2022-03-01 Praxair Technology, Inc. System and method for flexible recovery of argon from a cryogenic air separation unit
CN109248464B (en) * 2018-11-08 2023-12-12 乐山师范学院 Full-automatic distillation head
CN110052052A (en) * 2019-05-29 2019-07-26 天津赫普菲乐新材料有限公司 Multicomponent batch fractionating intelligence control system and control method
CN110262257B (en) * 2019-07-25 2021-11-16 杭州希亚智新科技有限公司 Multivariable control method and device
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JP6939872B2 (en) * 2019-12-13 2021-09-22 栗田工業株式会社 Distillation column management system, distillation column state analysis method and distillation column management method
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Also Published As

Publication number Publication date
CN101267868A (en) 2008-09-17
CA2696644C (en) 2014-03-11
CN101893850A (en) 2010-11-24
CN101893850B (en) 2012-10-03
WO2007021912A2 (en) 2007-02-22
US7292899B2 (en) 2007-11-06
CN101267868B (en) 2010-10-27
CA2696644A1 (en) 2007-02-22
EP1917081A2 (en) 2008-05-07
CA2619169A1 (en) 2007-02-22
EP2327463A1 (en) 2011-06-01
EP1917081B1 (en) 2014-10-29
US20070038333A1 (en) 2007-02-15
BRPI0614404B1 (en) 2017-02-14
EP2327463B1 (en) 2014-01-15
CA2619169C (en) 2011-01-04
BRPI0614404A2 (en) 2011-03-29

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